Angola’s Electoral Commission declared Wednesday that the ruling MPLA party had won last month’s election, in a victory that allows outgoing President Jose Eduardo dos Santos to install a party loyalist in his place after 38 years in power.

The Popular Movement for the Liberation of Angola (MPLA) garnered 61.7 percent of the vote, and a majority of 150 of the 220 seats in parliament, the head of the electoral commission, Andre da Silva Neto, said in announcing the final results.

Dos Santos, 75, who has ruled since 1979 and is reportedly in poor health, will hand over to former defence minister Joao Lourenco at the presidential inauguration on September 25.

The opposition National Union for the Total Independence of Angola (Unita) won 26.6 percent of the votes and 51 parliamentary seats, while Casa-CE managed 9.5 percent with 16 seats.

“He should support free press and association, and ensure that all Angolans are able to express their political views without fear of reprisal or intimidation,” said regional director Dewa Mavhinga.

Results of the general election in Angola
“Opposition parties’ claims that elections were marred by irregularities, such as the disappearance of ballot boxes, should be promptly investigated by a competent and impartial body,” he added.

On Sunday, four defeated opposition parties called for a recount of the August 23 vote, complaining that the election was conducted incorrectly, with ballot boxes and voter forms allegedly disappearing.

But the electoral commission has rejected the demand.

The MPLA had predicted it would win easily, but the result showed a decline in support from the 2012 election.

The oil-rich country of 28.8 million population is battling high poverty levels and has suffered from a slump in crude prices in recent years.